Oil-well pump



T. J. BARGER March 18 1924.

OIL WELL PUMP Filed Dec. 5. 1922 Patented Mar. lid, 122d.

p dt T l T032 ll. BARGER, OF GILT ON, OKLOMA.

OIL-WELL PUMP.

Application filed December 5, 1922. Serial 1%.605955.

To all whom it may concern:

Be it known that I, Tom J. BARonu, a citizen of the United States,residing at Oilton, in the county of Greek and State of Oklahoma, haveinvented certain new and useful Improvements in Oil-Well Pumps, of whichthe following is a specification.

This invention relates to pumps provided with sand traps and. chiefiused in connection with oil wells; an it consists in the novelconstruction and combination of the parts hereinafter fully describedand claimed whereby the sand is guided into the sand trap and preventedfrom passing backwardly into the pump barrel.

In the drawings, igure 1 is a vertical section through a pump providedwith a sand trapand a sand ide according to this invention. Fi 2 1s asectional plan view, taken on the line 2-2 in Fig. 1. Fig. 3 is avertical section through the guide 13 and stem 13 showing a preferredmodification in the form of the passage 21.

The pump barrel 4 is secured at its lower end to a coupling sleeve 5,andthe lower end of the sand trap 6 is also secured to this sleeve sothat it encircles the pump barrel. The sand trap is a long cylindricalvessel, and the sleeve 5 forms the bottom of it. The suction pipe '5 isalso secured to the sleeve 5, and is provided with a foot valve in theusual manner. The plunger 8 works in the pump barrel 4, and is of anyapproved construction. The delivery valve 9 is inclosed in a cage 10which is secured to the upper end of the plunger. The pump rod 12 issecured to the upper end of the cage 10. v

The upper end portion of the pump barrel 4 is retained centrally andsteadied within the sand trap h distance pieces 1% which do notmaterially obstruct the sand trap, and the upper end of the sand tra isconnected to the delivery ipe 15 of t e pump by a conical coupling seeve 16. The pump rod 12 slides in a guide 13 supported at the tog pfthe (pump barrel.

e gui e has outlet passages 19 which deliver upwardly, and it ispreferably a little larger in diameter than the pump barrel so that itrests on the upper end of it. Suitable packing devices 20 are secured tothe .uide 13, and are slidable within the pump arrel so that the Y maybe removed and replaced. These pac ing devices and the pump plunger arepreferably provided with suction cups such as used on pump plungers ofapproved construction. The packing devices have a longitudinal outlet21, and a cage 22 is secured to their lower end. In the preferred formof the device shown in Fig 3, a single passage 21 for the oil isprovided in the stem 13' of the guide 13, which passa communicates withthe passages 19 of t e guide. The packing devices are secured on thestem 13 by the cage 22 which is screwed on the lower end portion of thestem, or secured to it in any other approved way. A single passage 21for the 011 is preferred as it gives a free outlet.

The oil or other fluid together with the sand passes upwardly throughthe cage 22, outlet 21 and passages 19 at-each upstroke of the plunger.In order to revent the sand from passing backwardl y into the pumpbarrel during the downstroke of the plunger, aconical cap or deflector24 is arranged on the pump rod 12 above the passages 19 in the guide..This cap has an upper surface which projects downwardly and outwardly,and does not close the passages 19 and does not prevent oil from pass indownwardly into the barrel.

he sand which is discharged with the oil strikes the inclined undersideof the ca at the upstroke of the plunger, and muc of it is deflectedinto the sand trap. The sand which is drawn up into the delivery pipe.descends upon the inclined top of the cap during the downstroke of theplunger, and slides 05 the cap into the sand trap. The cap or deflector'24 is slidablo on the pump rod, and is made of predetermined size andweight so that it will rise to 9. limited extent within the conicalcoupling sleeve 16 without closing the delivery pipe, the resistancebeing increased by ;.the conical form of the cou lin as the cap rises tolet the oil flow free y t rough. the passages 19.

Vl hat I claim is:

1. The combination, with'a ump plunger and free to rise wit the li uidat eac upstroke and operating to gui the sand into the sand trap at eachdownstnolne.

2. The combination, with a pump barrel, a sand trap encircling the pumpbarrel, a delivery pipe secured to the upper end of the sand trap, and apump plunger provided with a pump rod; of a guide for the pump rod whichrests on the top of the pump barrel and which has packing devices at itslowerpart which are slid into the pump barrel, said guide havin adischarge outlet at its top, anda conica cap or sand deflector mountedon the pump rod above the said discharge outlet and operating to guidethe sand 1nt0 the sand trap.

. 3. The combinat-iomwith a pump plunger provided with a pump rod, and apump barrel provided with a guide at its upper part in which the pumprod is slidable; of I a sand trap secured around the pump barrel, aconical coupling sleeve secured to the said sand trap and encircling theupper part of the said guide, a, delivery pipe secured to the smallerend portion of the coupling sleeve, and a sand deflector arranged in thesaid coupling sleeve,.said sand deflector being rovided with a conicalupper surface and 'aving a hole in which the pump rod is slidable, saidsand deflector bein normally supported by the said guide an operating todeflect the sand outwardly into the sand tra n testimony whereof I haveafiixed my signature.

TOM J. BARGER

